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Benefits of prototypal inheritance over classical?
So I finally stopped dragging my feet all these years and decided to learn JavaScript "properly". One of the most head-scratching elements of the languages design is it's implementation of inheritance. Having experience in Ruby, I was really happy to see closures and dynamic typing; but for the li...
Implicit type conversion rules in C++ operators
I want to be better about knowing when I should cast. What are the implicit type conversion rules in C++ when adding, multiplying, etc. For example,
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Android: AsyncTask vs Service
Why do I read in the answer to most questions here a lot about AsyncTask and Loaders but nothing about Services ? Are Services just not known very well or are they deprecated or have some bad attributes or something? What are the differences?
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What is a 'thunk'?
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A thunk usually refers to a small piece of code that is called as a function, does some small thing, and then JUMPs to another location (usually a function) instead of returning to its caller. Assuming the JUMP target is a normal function, when it...
What do people find difficult about C pointers? [closed]
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I suspect people are going a bit too deep in their answers. An understanding of scheduling, actual CPU operations, or assembly-level memory management isn't really required.
When I was teaching, I found the following holes in students' understanding to be t...
When do you use Git rebase instead of Git merge?
When is it recommended to use Git rebase vs. Git merge?
16 Answers
16
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Adding Core Data to existing iPhone project
I'd like to add core data to an existing iPhone project, but I still get a lot of compile errors:
13 Answers
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Class does not implement its superclass's required members
So I updated to Xcode 6 beta 5 today and noticed I received errors in nearly all of my subclasses of Apple's classes.
4 Ans...
Authentication versus Authorization
...tion is the process of ascertaining that somebody really is who they claim to be.
Authorization refers to rules that determine who is allowed to do what. E.g. Adam may be authorized to create and delete databases,
while Usama is only authorised to read.
The two concepts are completely ortho...
support FragmentPagerAdapter holds reference to old fragments
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You are running into a problem because you are instantiating and keeping references to your fragments outside of PagerAdapter.getItem, and are trying to use those references independently of the ViewPager. As Seraph says, you do have guarantee...